1313574-75-2Relevant academic research and scientific papers
Pd-catalyzed [2+2+1] coupling of alkynes and arenes: Phenol diazonium salts as mechanistic trapdoors
Schmidt, Bernd,Berger, Rene,Kelling, Alexandra,Schilde, Uwe
supporting information; experimental part, p. 7032 - 7040 (2011/07/30)
Alkynes and phenol diazonium salts undergo a Pd-catalyzed [2+2+1] cyclization reaction to spiro[4,5]decatetraene-7-ones. This structure was confirmed for one example by X-ray single-crystal structure analysis. The reaction is believed to proceed through oxidative addition of the phenol diazonium cation to Pd0, subsequent insertion of two alkynes, followed by irreversible spirocyclization. Copyright
